Formats Learn programming Java

import java.util.*;
public class Main
{
	public static void main(String[] args)
	{
		int n;
		System.out.println("Enter a digit: ");
		n = Integer.parseInt(new Scanner(System.in).nextLine());

		// Part A: "n n n n" using Write
		System.out.print(n);
		System.out.print(" ");
		System.out.print(n);
		System.out.print(" ");
		System.out.print(n);
		System.out.print(" ");
		System.out.print(n);
		System.out.println();

		// Part B: "nnnn" using Write
		System.out.print(n);
		System.out.print(n);
		System.out.print(n);
		System.out.println(n);
		System.out.println();

		// Part C: "n n n n" using {0}
		System.out.printf("%1$s %1$s %1$s %1$s" + "\r\n", n);

		// Part D: "nnnn" using {0}
		System.out.printf("%1$s%1$s%1$s%1$s" + "\r\n", n);
	}
}